Which drug works by encouraging neurotransmitter release from the presynaptic cell?

a. caffeine
b. alcohol
c. cocaine
d. depression medication
e. heroin


b

Biology & Microbiology

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During an action potential, the membrane potential can reach as high as ____

a. -10 mV b. 0 mV c. +10 mV d. +20 mV e. +30 mV

Biology & Microbiology

What is the term for organisms in which internally-fertilized eggs are laid to develop and hatch outside the mother's body?  

A.  placental B.  viviparous C.  oviparous D.  marsupial E.  ovoviviparous

Biology & Microbiology

Fungi are at least ________ million years old.

A. 400 B. 1 C. 50 D. 100 E. 25

Biology & Microbiology

The chemical 5-bromouracil mimics the chemical structure of thymine, making it a(n) (analog/nucleotide/precursor) of thymine.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology